Elevator shaft safety device

Abstract

The utility model belongs to the field of building construction technology, concretely relates to elevator shaft safety device for protection, including front protection frame, the first sliding slot is set up in front protection frame longitudinal end surface, the first sliding slot surface is connected with the first sliding bar of sliding, the first sliding bar other side surface is connected to the surface of rear protection frame, the second sliding slot is set up in rear protection frame longitudinal end surface, the second sliding slot surface is connected with the second sliding bar of sliding, the second sliding bar other side surface is connected to the surface of front protection frame, the long circular groove is set up in front protection frame surface, the surface movable plug-in butterfly bolt, the butterfly bolt surface is connected with the nut of screw thread, the nut surface is welded to the surface of rear protection frame. The utility model, through the front, rear protection frame of sliding connection together according to the size of elevator shaft adjusts the overlapping position of both, thereby according to the size of elevator shaft of need to add protection structure to adjust the interval between the front, rear protection frame at will, satisfy the use demand of different size elevator shaft, and then reduce the use cost.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a safety protection device for elevator shafts. Background Technology

[0002] In modern buildings and elevator operation systems, elevator shafts, as the core passage for elevator operation, have deep internal spaces and complex structures, posing numerous safety hazards. Elevator shaft safety protection devices have emerged as key facilities to ensure personnel safety and stable equipment operation. Elevator shaft safety protection devices play a crucial role throughout the entire lifecycle of an elevator, addressing several key stages. During the construction phase, before the elevator shaft is installed, the shaft opening is open. Temporary safety doors and horizontal safety nets within the shaft are necessary to prevent accidental falls by construction workers and to prevent debris such as building materials and tools from falling into the shaft, thus avoiding injury to personnel in the work area below and creating a safe working environment for construction workers. During the elevator installation and commissioning phase, the safety devices protect installation personnel working within the shaft and prevent accidental falling parts from causing accidents during commissioning. Existing elevator shaft safety nets are mostly welded and fixed in size. However, the size of elevator shafts is not completely uniform in different building projects. Even in the same building, the width of elevator shafts on different floors may have slight differences due to construction errors, design changes and other factors. The fixed size of the safety net in use leads to the need to customize multiple specifications of safety nets to meet the usage requirements, which in turn increases the usage cost. Utility Model Content

[0003] The purpose of this utility model is to provide a safety protection device for elevator shafts, aiming to solve the problem that existing elevator shaft safety nets are mostly welded and fixed in size. However, the size of elevator shafts in different building projects is not completely uniform. Even in the same building, the width of elevator shafts on different floors may have slight differences due to construction errors, design changes and other factors. The fixed size of the protective net in use leads to the need to customize multiple specifications of protective nets to meet the usage requirements, which in turn increases the usage cost.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an elevator shaft safety protection device, comprising a front protective frame, a first sliding groove formed on the longitudinal end surface of the front protective frame, a first sliding rod slidably connected to the surface of the first sliding groove, the other side surface of the first sliding rod connected to the surface of a rear protective frame, a second sliding groove formed on the longitudinal end surface of the rear protective frame, a second sliding rod slidably connected to the surface of the second sliding groove, the other side surface of the second sliding rod connected to the surface of the front protective frame, an elongated groove formed on the surface of the front protective frame, a wing bolt movably inserted into the surface of the front protective frame, a nut threadedly connected to the surface of the wing bolt, a limit plate connected to the surface of the limit plate, a protrusion connected to the surface of the limit plate, the protrusion abutting against the surface of the front protective frame, a side frame connected to the surfaces of the front and rear protective frames, a conical block connected to the surface of the side frame, and mounting holes formed on the surface of the side frame.

[0005] As a preferred embodiment of the elevator shaft safety protection device of this utility model, both the front and rear protective frames are "L"-shaped integrated structures.

[0006] As a preferred embodiment of the elevator shaft safety protection device of this utility model, three sets of first sliding grooves and second sliding grooves are respectively opened at equal intervals on the surface of the front protective frame and the rear protective frame, and the first sliding groove, the first sliding rod, the second sliding groove and the second sliding rod are arranged in parallel on the surface of the front protective frame and the rear protective frame.

[0007] As a preferred embodiment of the elevator shaft safety protection device of this utility model, a circular through groove is provided at the intersection of the surface of the rear protective frame and the elongated groove, and its shape and size are adapted to the wing bolt.

[0008] As a preferred embodiment of the elevator shaft safety protection device of this utility model, the protrusion is a circular integral structure, and the protrusion is distributed in a ring on the surface of the limiting plate.

[0009] As a preferred embodiment of the elevator shaft safety protection device of this utility model, the side frame is an "L"-shaped integrated structure with two sets of conical blocks symmetrically distributed on its inner wall surface.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The front and rear protective frames, which are slidably connected, can be adjusted to overlap according to the size of the elevator shaft. This allows for easy adjustment of the distance between the front and rear protective frames based on the size of the elevator shaft to be fitted with protective structures, thus meeting the needs of elevator shafts of different sizes and reducing operating costs. Meanwhile, the friction between the front and rear protective frames and the wall is increased by the side frames connected to the front and rear protective frames and the conical blocks connected to them, thereby ensuring the connection stability of the front and rear protective frames on the wall surface. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the exploded structure of the main cross-section of this utility model; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is an enlarged structural diagram of the butterfly bolt part of this utility model.

[0012] In the diagram: 1. Front protective frame; 2. First slide groove; 3. First slide rod; 4. Rear protective frame; 5. Second slide groove; 6. Second slide rod; 7. Long oval groove; 8. Wing bolt; 9. Nut; 10. Limiting plate; 11. Protrusion; 12. Side frame; 13. Conical block; 14. Mounting hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-5 This utility model provides the following technical solution: an elevator shaft safety protection device, including a front protective frame 1, a first sliding groove 2 opened on the longitudinal end surface of the front protective frame 1, a first sliding rod 3 slidably connected to the surface of the first sliding groove 2, the other side surface of the first sliding rod 3 connected to the surface of the rear protective frame 4, a second sliding groove 5 opened on the longitudinal end surface of the rear protective frame 4, a second sliding rod 6 slidably connected to the surface of the second sliding groove 5, the other side surface of the second sliding rod 6 connected to the surface of the front protective frame 1, an elongated groove 7 opened on the surface of the front protective frame 1, a wing bolt 8 movably inserted into the surface of the surface, a nut 9 threadedly connected to the surface of the wing bolt 8, a limit plate 10 connected to the surface of the wing bolt 8, a protrusion 11 connected to the surface of the limit plate 10, the surface of the protrusion 11 abutting against the surface of the front protective frame 1, a side frame 12 connected to the surfaces of the front protective frame 1 and the rear protective frame 4, a conical block 13 connected to the surface of the side frame 12, and mounting holes 14 opened on the surface of the side frame 12.

[0015] Preferably, both the front protective frame 1 and the rear protective frame 4 are "L"-shaped integrated structures.

[0016] In actual use, the rectangular cavities of the front protective frame 1 and the rear protective frame 4 are slidably connected together, so that the front protective frame 1 and the rear protective frame 4 can be retracted when not in use to reduce the space they occupy.

[0017] Preferably, three sets of first sliding grooves 2 and second sliding grooves 5 are equally spaced on the surfaces of the front protective frame 1 and the rear protective frame 4, and the first sliding groove 2, the first sliding rod 3, the second sliding groove 5 and the second sliding rod 6 are arranged in parallel on the surfaces of the front protective frame 1 and the rear protective frame 4.

[0018] In practical use, the first slide groove 2 and the first slide rod 3, as well as the second slide groove 5 and the second slide rod 6, which are slidably connected to each other, facilitate the adjustment of the distance between the front protective frame 1 and the rear protective frame 4, while ensuring a stable connection between the two.

[0019] Preferably, a circular through groove is provided at the intersection of the surface of the rear protective frame 4 and the elongated groove 7, and its shape and size are adapted to the wing bolt 8.

[0020] In practical use, hold the handle on the surface of the wing bolt 8, pass it through the elongated groove 7 on the surface of the front guard 1, and insert it into the circular through groove on the surface of the rear guard 4. Finally, thread it onto the nut 9 to fix the connection between the front guard 1 and the rear guard 4.

[0021] Preferably, the protrusion 11 is a circular integral structure, and the protrusion 11 is distributed in a ring on the surface of the limiting disk 10.

[0022] In practical use, the wing bolt 8 is rotated so that the limiting plate 10 and the protrusion 11 connected to its surface abut against the front end of the front protective frame 1, thereby using the protrusion 11 to increase the friction between the limiting plate 10 and the wall connection surface.

[0023] Preferably, the side frame 12 is an L-shaped integrated structure with two sets of conical blocks 13 symmetrically distributed on its inner wall surface.

[0024] In practical use, the conical block 13 connected to the surface of the side frame 12 abuts against the wall to increase the friction between the side frame 12 and the wall, thus preventing its displacement.

[0025] Working principle: Before installing elevator equipment in the elevator shaft, the first sliding rod 3 and the second sliding rod 6, which are respectively movably connected between the front protective frame 1 and the rear protective frame 4, slide within the first sliding groove 2 and the second sliding groove 5. This allows the distance between the front protective frame 1 and the rear protective frame 4 to be adjusted according to the width of the elevator shaft. The discs on the surfaces of the first sliding rod 3 and the second sliding rod 6 limit their sliding range within the first sliding groove 2 and the second sliding groove 5, preventing the slidingly connected first sliding rod 3 and the second sliding rod 6 from disengaging from the second sliding groove 5 during adjustment. This allows the side frames 12 connected to the surfaces of the front protective frame 1 and the rear protective frame 4 to be fitted onto the wall surfaces on both sides of the elevator shaft opening. After adjustment, the handle on the surface of the wing bolt 8 is held, passed through the elongated groove 7 on the surface of the front protective frame 1, and inserted into the rear protective frame. The circular through groove on the surface of the frame 4 is finally threaded onto the nut 9. Then, the wing bolt 8 is rotated continuously so that the limiting plate 10 and the protrusion 11 connected to its surface abut against the front end of the front protective frame 1. The front protective frame 1 and the rear protective frame 4 are clamped together by the nut 9 and the limiting plate 10, thereby fixing and adjusting the connection of the front protective frame 1 and the rear protective frame 4 at the connection point. This allows the front protective frame 1 and the rear protective frame 4 to be adjusted according to the size of the elevator shaft to meet the protection of elevator shafts of different sizes. Then, the conical block 13 connected to the surface of the side frame 12 abuts against the wall to increase the friction between the side frame 12 and the wall and prevent its displacement. The mounting hole 14 and the mounting groove and fixing components on the wall surface are used to fix the position of the front protective frame 1 and the rear protective frame 4 on the wall at the opening end of the elevator shaft. Furthermore, the short shaft dimension of the long circular groove 7 is 0.8-1.2mm larger than the diameter of the wing bolt 8, and an H9 / f8 clearance fit is adopted. In actual use, the distance between the three sets of first sliding groove 2 and second sliding groove 5, as well as the first sliding rod 3 and second sliding rod 6, is 400mm. The side frame 12 is made of Q235 carbon steel.

[0026] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety protection device for elevator shafts, including a front protective frame (1), characterized in that: The front protective frame (1) has a first groove (2) on its longitudinal end surface, and a first slide rod (3) is slidably connected to the surface of the first groove (2). The other side surface of the first slide rod (3) is connected to the surface of the rear protective frame (4). The rear protective frame (4) has a second groove (5) on its longitudinal end surface, and a second slide rod (6) is slidably connected to the surface of the second groove (5). The other side surface of the second slide rod (6) is connected to the surface of the front protective frame (1). The front protective frame (1) has an elongated groove (7) on its surface, and a wing bolt is movably inserted into the surface. (8) The surface of the wing bolt (8) is threaded to the nut (9), the surface of the nut (9) is welded to the surface of the rear guard frame (4), the surface of the wing bolt (8) is connected to the limiting plate (10), the surface of the limiting plate (10) is connected to the protrusion (11), the surface of the protrusion (11) abuts against the surface of the front guard frame (1), the surfaces of the front guard frame (1) and the rear guard frame (4) are connected to the side frame (12), the surface of the side frame (12) is connected to the conical block (13), and the surface of the side frame (12) has an installation hole (14).

2. The elevator shaft safety protection device according to claim 1, characterized in that: Both the front protective frame (1) and the rear protective frame (4) are "L" shaped integrated structures.

3. The elevator shaft safety protection device according to claim 2, characterized in that: The three sets of first slide grooves (2) and second slide grooves (5) are respectively opened at equal intervals on the surface of the front protective frame (1) and the rear protective frame (4), and the first slide groove (2), the first slide rod (3), the second slide groove (5) and the second slide rod (6) are arranged in parallel on the surface of the front protective frame (1) and the rear protective frame (4).

4. The elevator shaft safety protection device according to claim 1, characterized in that: A circular through groove is provided at the intersection of the surface of the rear protective frame (4) and the elongated groove (7), and its shape and size are adapted to the wing bolt (8).

5. The elevator shaft safety protection device according to claim 1, characterized in that: The protrusion (11) is a circular integral structure, and the protrusion (11) is distributed in a ring on the surface of the limiting disk (10).

6. The elevator shaft safety protection device according to claim 1, characterized in that: The side frame (12) is an "L" shaped integrated structure with two sets of conical blocks (13) symmetrically distributed on its inner wall surface.

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